all this while,both in the anime and manga,it was clear that susanoo was a special power that is awakened by few uchiha.and because of the way kishi explained it,we all thought that,the susanoo can only be awakened by those who already possess the amaterasu and tsukoyomi powers,but now kishi is saying the opposite.what this means is that the susanoo is nothing special because all uchiha who awaken ms can use susanoo.actually the power that is rare to awaken is not the susanoo,but the amaterasu and tsukoyomi and even kamui in my own opinion.to make matters worse kakashi was using ps with an ms.the thing is kishi ****ed up by giving a huge chakra based jutsu(susanoo) to a ninja with low chakra reserves,it makes no sense.